diff --git a/src/core/thread/data_poll_manager.hpp b/src/core/thread/data_poll_manager.hpp
index bbf28d808..af9ed9dd1 100644
--- a/src/core/thread/data_poll_manager.hpp
+++ b/src/core/thread/data_poll_manager.hpp
@@ -198,7 +198,7 @@ private:
     enum  // Poll period under different conditions (in milliseconds).
     {
         kAttachDataPollPeriod   = OPENTHREAD_CONFIG_ATTACH_DATA_POLL_PERIOD,  ///< Poll period during attach.
-        kRetxPollPeriod         = 500,                                        ///< Poll retx period due to tx failure.
+        kRetxPollPeriod         = 1000,                                       ///< Poll retx period due to tx failure.
         kNoBufferRetxPollPeriod = 200,                                        ///< Poll retx due to no buffer space.
         kFastPollPeriod         = 188,                                        ///< Period used for fast polls.
         kMinPollPeriod          = 10,                                         ///< Minimum allowed poll period.